Automatically opening paint tube



July 18, 1933. G. ROLOT AUTOMATICALLY OPENING PAINT TUBE 2 Sheets-Sheet 1 Filed July 21, 1932 y G. ROLOT AUTOMATICALLY OPENING PAINT TUBE Filed July 21, 1932 2 Sheets-Sheet 2 [rwezzfor G' oryea' field, By MM 5% I filiorney.

Patented July. 18, 1933 GEORGES BOLOT, OF IBEAUNE, FRANGE AUTOMATICALLY OPENING PAINT TUBE Application filed July 21, 1932. Serial No. 623,877.

The present invention has for its object improvements in automatically openmg paint tubes.

These improvements relate more particularly to the kind of cases wherein the opening of the cover is obtained, simultaneously with the emersion of the product, by means of two cylindrical tubes, one of which is arranged to swing around and to slide with respect to the other, owin to the displacement of a pusher connecte to the shell su pgrting the paint-stick, this movable tu e ing provided with a curved slit for re ceiving a pin fixed to the pusher, and with a helicoidal guiding slit receiving a pin attached to the fixed tube. e

. The essential particularity of the invention consists in that the movable tube has .the purpose to ensure the opening or closing of t e cover and, simultaneously, its automatic arresting so as to prevent all undue opening of the case in the bag or ocket.

For this purpose the movable tu e is pro.- vided with a slit or guide taking along a pin fixed to the cover, and comprising three portions: 'firstly a straight longitudinal portion permitting the introduction of the coverpin into the guide on assemblin the case; secondly a helicoidal portion vfiaving' the same pitch and the same direction as the helicoidal slit guiding the movable tube with respect to the fixed tube, and acting as safety means against any undue opening of the cover and, thirdl an inclined portion destined for the opening of the cover.

Consequently the movabletube ensures, in two strokes, the movement of the cover and its fixation in the closed position. The invention provides finally a simplified attachment of the pusher to the shell supportin the paint-stick and, furthermore, di erent details put forward in the following description relating to the drawings appended which represent, merely inthe way of an example, one embodiment of a aint-case.

' 11 these drawings are:

1 a perspective view of a complete, clos case; Fig. 2 a perspective view of the outer part or body of the case together with the cover; Fig. 3 a perspective view of the fixed, central, tube;

tube;

Fig.5 the fixed central tube with the movable tube arranged thereon, and the paint shell within the fixed tube;

- Fig. 6 the tubular surfaces developed, the case being supposed as closed;

Fig. 7 a similar developed view, the case being supposed as open.

The case according to the invention comprises, for example, an outer shell 1 (Figs. 1, 2) of a square section with flat or rounded ofi angles and consisting of a thin metal which may be silvered, gilded, nickeled or decorated in any suitable way. It is of course possible to shape this outer shell in any other convenient way.

To the shell 1 is articulated the cover 3 by means of two pivots 2 preferably riveted or soldered, this cover swinging toward the rear of the case. a

4 is a curved guiding slit in the shell 1, having one pivot 2 as its center and guiding a pin 5 attached to the cover.

Another lon itudinal slide 6 guides the stem 7 of a pus er 8.

' On assembling the whole the shell 1 is fixed to a turned socket part 9 (Fig. 3) surmounted by a central fixed tube 10 provided with a longitudinal slit 11, opposite to which is placed the slit 6 of the shell 1.

In the tube 10 slides the sleeve or bush 12 supporting the paint-stick and provided with a slit 13 ensuring to its borders a certain elasticity, and with a hole'14 into which engages the stem 7 with its extremity suitably bent back for this purpose.

To the fixed tube 10 is rivted a pin 15 en- Fig. 4 a perspective viewof the movable gaging a slit in the tube 16 in a way specified later on. v

This tube 16 (Fig. 4) slides on the tube 10 and is provided with three slits.

The first slit serves for guiding the stem 7 and'comprises a straight portion 17 and a helicoidal portion 17,, with a progressive pitch, which portion could be partially perpendicular to the axis, yet for sake of a diminished friction the helicoidal shape is preferable. The second slit serves to receive the pin 15 of the central fixed tube 10 and comprises a helicoidal portion 18, and a straight portion 18 perpendicular to the axis of the-tube.

Finally, thethird slit comprises a straight longitudinal portion 19 destined for introducing thereinto the co'ver pin' 5'on assembling the case, a helicoidal portion 19, having the same pitch and the same'direction as the portion 18,, and finally an inclined portion 19 destined for the opening of the cover.

On assembling the stem 7 of the pusher traverses the slit 6 of the outer shell -1, the slit 17 of the inner shell 16, the slit 11 in the inner fixed tube and enters the hole 14 of the bush 12, wherein the extremity of the stem 7 is bent to form a hook (Fig. 5).

The mode of operation of the assembled case is as follows:

In the closed position of the case (Fig. 6)

- the pin 5 of the cover 3 is situated in the portion 19,, of the corresponding slit of the inner shell 16 and abuts against this portion so that all rotary motion of the stud 5 around the pivots 2 in the sense of the arrow 7 is impossible, that is to say,-the cover cannot get opened. At this time the stem 7 isat the end of its stroke at the bottom of the slit 11.

The stem is at the same time at the bottom of the slit 6 of the outer shell 1. In this position the slit 6 is closed by a full portion of the inner shell 16 owing to a rotation of the latter. to the left.

In order to open the case a push is exerted upon the pusher in the sense of the arrow 7' so as to displace the stem 7 within the slits 6' and 11. On doingfthat the stem 7 acts upon the slit portion; 17 and tends to move the inner shell 16. Now, since the slit portion 18 abuts against fixed stud 15 of the tube 10,

v the inner shell 16 is forced to dis lace itself in the sense-of the arrow f paral elly to the slit portion 18', until the slit portion 18., abuts against the stud 15. 'The movement of the inner shell 16 is therefore composed of two strokes and ascends in the sense of the arrow f owing in the slit portion 17. and permits of emersion of the product contained in the case.

During this time the slit 19 of-the inner shell 16 displaces itself with regard to the of the cover is efiected in two strokes. The

first stroke corresponds to a certain partial rotation and ascension of the inner shell 16 whereby the pin 5 gets into the slit portion 19,, or out of the same. The second stroke corresponds to the slit portion 19 entering into action. 4

In this wa, also a safety stop is obtained. preventing a l undue opening of the case in the bag or in the pocket, and at the same time the slit 6 of the outer shell is obturated in the closed position. Consequently the case is V entirely closed when not used.

It is obvious that the case described above v merely in the way of an example permits of numerous modifications wth regard to shape and to the details, without departing from the scope of the present invention.

It may be noted that after enga ment ofthe stem 7 into the slit portion 1 of the inner shell 16 the latter is prevented from turning and from descending and the cover cannot be closed during utilization. Y

What I'claim, is: v -1. In a paint-stick case, a central tube, an outer shell, means to fix said tube and said shell, a tube within said outer shell to move on said central tube, a sleeve movable within said central tube to support the paint-'- stick, a longitudinal slit in 'saidouter shell, a lon itudinal slit in said central tube, a longitudlnal slit in; said movabletub'e, an inclined portion in the lower part of said latterslit to undergo the push of the pusherestem, a studfixed to the central tube, a h icoidal slit in said movable tube to enga g-said stud, a pusher, a stem on said pusher-to traverse all said longitudinal slits and saidisleeve andto terminate within the latter with a hooked extremity.

2. In a paint-stick case, a central tube, an

outer shell, means to fix said tube and said shell, .a tube within said outer shell to move on said. central tube, a sleeve within said,

central tube to support thepaint-stick, lon'gitudinal slits in said tubes and said shell, a

pusher, a stern on said pusher to traverse said slits and said sleeve, a cover articulated to said outer shell, an inclined lower portion in said longitudinal'slit a helicoidal slope on saidmovable tube for imparting rotary movement to the same, another slit in l said movable tube, comprising three portions, the first portion being straight and longitudmal, the second portion being helicoi al nd the third portion being curved and inc ined, and a pin fixed to the cover, to be introdueed into said first portion on assembling .the case.

3. In a paint-stick case, a central tube, a socket to support the same and to impede its turning, an outer shell fixed to said socket, a tube within said shell to move on said central tube, a sleeve within said central tube to support the paint-stick, longitudinal slits in said tubes and said shell, a usher, a stem on said pusher to traverse said slits and said sleeve, a cover articulated to said shell, an inclined portion on said longitudinal slit of said movable tube, a helicoidal guiding slit in said movable tube to cooperate with a stud fixed to said central tube, another silt in put said movable tube, comprising three portions, the first portion being straight and lon tudinal and serving for the introduction 0 a pin fixed to the cover on assembling the ease, the second portion being helicoidal and havin the same pitch and the same direction as said helicoidal guiding slit, for preventing said pin from turning around the axis of its pivots and in this 'way the cover from getting opened, and the third portion being inclined and curved in the opposite way to render possible the opening 0 the cover b the continued rotation of said movable tu on said central tube owing to the stem of the pusher acting on the inclined portion of said longitudinal slit of the movable tube.

I GEORGES ROLOT. 

